EP 0302377 B1 19911227 - SOLVENT SYSTEM FOR DIFFICULTLY SOLUBLE POLYMERS
Title (en)
SOLVENT SYSTEM FOR DIFFICULTLY SOLUBLE POLYMERS
Publication
Application
Priority
US 7819387 A 19870727
Abstract (en)
[origin: EP0302377A1] Difficultly soluble aromatic polyamides, polybenzimidazoles and polyureas dissolve in a defined mixture of liquid sulfoxide, a base and an alcohol or water.
IPC 1-7
IPC 8 full level
C08L 77/10 (2006.01); C08J 3/02 (2006.01); C08J 3/09 (2006.01); C08K 3/10 (2006.01); C08K 3/16 (2006.01); C08K 3/22 (2006.01); C08K 5/05 (2006.01); C08K 5/057 (2006.01); C08K 5/36 (2006.01); C08K 5/41 (2006.01); C08L 67/00 (2006.01); C08L 67/03 (2006.01); C08L 75/00 (2006.01); C08L 75/02 (2006.01); C08L 77/00 (2006.01); C08L 79/04 (2006.01); C08L 79/06 (2006.01); C08L 79/08 (2006.01); D01F 6/74 (2006.01)
CPC (source: EP KR US)
C08J 3/02 (2013.01 - EP KR US); C08J 3/091 (2013.01 - EP US); C08J 3/097 (2013.01 - EP US); C08K 5/05 (2013.01 - KR); C08L 75/02 (2013.01 - KR); C08L 77/10 (2013.01 - KR)
Designated contracting state (EPC)
DE FR GB IT LU NL
DOCDB simple family (publication)
US 4785038 A 19881115; CA 1329438 C 19940510; CN 1020909 C 19930526; CN 1030920 A 19890208; DE 3867169 D1 19920206; EP 0302377 A1 19890208; EP 0302377 B1 19911227; IN 170015 B 19920125; JP 2605117 B2 19970430; JP S6440559 A 19890210; KR 890002240 A 19890410; KR 970011708 B1 19970714; RU 2015215 C1 19940630
DOCDB simple family (application)
US 7819387 A 19870727; CA 573076 A 19880726; CN 88104736 A 19880727; DE 3867169 T 19880727; EP 88112117 A 19880727; IN 620CA1988 A 19880726; JP 18376088 A 19880725; KR 880009381 A 19880726; SU 4356217 A 19880726